Chemical and Biological Investigation of Organic Wastes of Frying Oils and Beef Fats: Valorization for Biodiesel Production

Table 3

Quantitative composition of the FAMEs of biodiesel formed by whole-cell transesterification process.

Peak number	Ret time (min)	% Area	Composition
Waste of beef fats
4	6.39	14.70	Hexadecanoic acid, methyl ester
6	7.35	6.17	Hexadecanoic acid, ethyl ester
8	8.24	4.28	Hexadecanoic acid, methyl ester
9	9.11	6.12	9,12-Octadecadienoic acid (Z,Z)-methyl ester
10	9.22	32.84	9-Octadecenoic acid, methyl ester (E)
11	9.31	2.83	9-Octadecenoic acid, methyl ester (E)
12	9.66	9.55	Methyl stearate
14	10.47	13.88	Ethyl oleate
15	10.96	3.70	Octadecanoic acid, ethyl ester
Waste of frying oil
1	4.10	2.26	Methyl tetradecanoate
3	6.11	2.53	Methyl hexadec-9-enoate
4	6.36	20.66	Hexadecanoic acid, methyl ester
7	7.89	3.46	Heptadecanoic acid, methyl ester
9	9.12	4.53	9,12-Octadecadienoic acid (Z,Z)-methyl ester
10	9.23	35.73	9-Octadecenoic acid, methyl ester
11	9.36	4.84	10-Octadecenoic acid, methyl ester
12	9.67	16.38	Octadecanoic acid, methyl ester

total of 16 compounds; only the compounds for which the area > 2% are presented.